This vegetation include species-poor submerged stands of Potamogeton berchtoldii or P. pusillus, which often grow across the entire water column. It occurs in mesotrophic to eutrophic, clear water of varying depth, particularly in shallow parts of fishponds, in fish storage ponds, flooded sand pits and quarries, and in channels and rivers, especially along their lower courses. These habitats are usually either disturbed or in an early stage of succession. This association is common from the lowlands to submontane areas across the Czech Republic.